19: Rotating Rigid Bodies, Inertia, and Axis Theorems

Topics covered: Rotating Rigid Bodies, Moments of Inertia, Parallel Axis and Perpendicular Axis Theorem. The moment of inertia for a rigid body around an axis of rotation is introduced, and related to its rotational kinetic energy. Flywheels can be used to store energy. Planets and stars have spin rotational kinetic energy, and the Crab Nebula pulsar is presented as a spectacular example.

Instructor/speaker: Prof. Walter Lewin

Date recorded: October 27, 1999

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Walter Lewin and MIT OpenCourseWare

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